COHERENT ANALYSIS OF THE RABBITS BRAIN EL ECTRICAL-ACTIVITY AT THE DOMINANT OF THIRST

Study of the spatial-temporal relations of the brain electrical activi ty at the dominant of thirst revealed a definite reconstruction of ele ctrical processes' interrelations in the cortex and subcortex in a low -frequency range. Regular increase of coherence level in the delta-ran ge took place between the potentials of 'the frontal cortical area and APL, AHA, PV testifying to a formation of a primary dominant focus in these structures. At tonic state of the dominant the greatest increas e of coherence function evaluations took place in the theta1-range; be fore summation movement maximal values of coherence were observed in t he theta2-range. The above-mentioned differences are probably connecte d with the different levels of motivational-emotional excitation, appe aring at corresponding stages of a dominant manifestation.